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Aircon compressor overheating

Top 7 Symptoms of Aircon Compressor Overheating

Aircon compressor overheating is a common issue in Singapore. An aircon is a must-have home appliance in the hot and humid conditions of Singapore, and a compressor is the heart of it. Failure of a compressor disturbs the functionality of the aircon and the indoor temperature. The compressor of an aircon can face several issues, and overheating is one of them. Homeowners need to recognize the symptoms of overheated compressors to ensure optimum operation of the aircon units. This article explains the major symptoms that can point towards an overheated compressor issue in the aircon.  

Why Aircon Compressor is Overheating?

AC compressor overheating is a major concern for aircon users. Almost all homeowners face this issue at some point in time and should recognize it soon after it happens. The causes of aircon compressor overheating include improper ventilation, overloading, short circuits, unstable voltage levels, and low refrigerant levels.  

Before you go to an aircon compressor overheating solution, you must be aware of its symptoms to recognize it timely. LS Aircon Servicing Singapore offers aircon repair, gas top-up, and general services and explains the top seven symptoms of recognizing air compressor overheating. Let’s explore these top seven symptoms of aircon compressor overheating. 

1. Reduced Cooling Efficiency

The first and foremost sign of an overheated air compressor is reduced cooling efficiency. An overheated compressor cannot properly compress the refrigerant, hence spreading less cool air in the indoor space. 

If you find your aircon in this situation after several reset sessions, it indicates an overheated aircon compressor. This reduction in cooling can make the indoor environment uncomfortable and affect the daily life routine. 

2. Frequent Tripping of Circuit Breaker

Frequent tripping of the aircon circuit breaker also points towards an overheated compressor. The circuit breaker protects the circuit from excessive current flow and breaks the circuit in the event of a large current that is beyond the overloading limit. When the compressor of an aircon overheats, the aircon draws more current from the main, and thus, the current can cross the circuit breaker’s threshold for breaking the circuit, and it does that. 

A tripping circuit breaker can also indicate a potential short circuit. Therefore, if you notice frequent tripping of the aircon circuit breaker, shut it down for a while and hire a professional to inspect and find the exact issue. 

Air conditioner compressor overheating

3. Unusual Noises

When the compressor of an aircon overheats, it produces strange noises and you might hear grinding, buzzing, or humming noise from the outdoor unit. This can happen because of an overheated compressor. 

When the load increases above the capacity of the aircon, the compressor overheats and works even harder, making strange noises. Therefore, if you observe this kind of situation, immediately call a professional to assist you in the issue. 

4. Increased Energy Bills

As mentioned above, when the compressor overheats, it has to work harder to cool an indoor space. This extra hard work reflects extra electricity units being consumed. If you observe a sudden rise in the electricity bills, an overheated aircon compressor can be one of the reasons. Therefore, being aware of the usage of electricity can help you identify issues with your aircon. 

5. Short Cycling

When an air conditioner turns off and on several times, this can also point towards an overheated aircon compressor. It indicates that the overheated aircon compressor does not let it operate for a longer time. Short cycling reduces the system’s efficiency and also affects the functionality of other components. When you notice this issue, call your local electrician promptly. 

6. Warm Air from Vents

When your aircon suddenly spreads warm air, it illustrates a situation when the compressor fails to compress the refrigerant properly. This results in reduced cooling efficiency; hence, the aircon starts blowing hot air. If this is the case with your aircon, immediately turn off the unit and seek professional help to avoid adding further problems to your aircon system. 

7. Visible Signs of Damage

In some cases, you may be able to see visible signs of damage on the compressor or the surrounding components. Overheating can cause the compressor to become discolored, or you may notice burnt or melted insulation on the wiring. 

AC compressor overheating

These visible signs of damage indicate that the compressor has been operating under excessive heat and needs immediate attention. Regular maintenance and inspection can help identify these issues before they lead to more significant problems.

In the worst-case scenario, you can notice visible symptoms of damage. Overheating can decolorize or burn the melted insulation on the wiring. These visible signs point towards an overheated compressor that was overloaded for a longer period. Keep an eye on the aircon functionality, and maintain it in good condition to enjoy a comfortable indoor environment. 

Conclusion

In conclusion, identifying the symptoms of aircon compressor overheating is essential for planning timely remedies. This is also mandatory for keeping the aircon in good health and protecting its other components from additional strains. Major symptoms like reduced cooling, strange noises, increased electricity bills, and short cycling are explained in the article. Homeowners should take prompt action to identify and locate the root cause and devise a solution for the aircon compressor overheating issue. 

Frequently Asked Questions

If an aircon compressor overheats, it can cause the breaker to trip several times and reduce the cooling efficiency. This can put excessive strain on other components of the aircon and damage it in the long run.
A bad capacitor can be one of several reasons for an overheated compressor. Other reasons include overloading, low refrigerant levels, and unbalanced power conditions.
Improper ventilation causes the aircon compressor to heat too much. Although other causes are also explained in the article, this is the biggest reason for an aircon compressor overheating.